CN110539800A - Front auxiliary frame with hollow casting and section welding combined structure - Google Patents
Front auxiliary frame with hollow casting and section welding combined structure Download PDFInfo
- Publication number
- CN110539800A CN110539800A CN201910801454.1A CN201910801454A CN110539800A CN 110539800 A CN110539800 A CN 110539800A CN 201910801454 A CN201910801454 A CN 201910801454A CN 110539800 A CN110539800 A CN 110539800A
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- China
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- casting
- rear cross
- longitudinal beam
- cross beam
- cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
- B62D27/023—Assembly of structural joints
Abstract
The invention belongs to the technical field of automobile parts, and particularly relates to a front auxiliary frame with a hollow casting and section welding combined structure. Firstly, the aluminum material is adopted for direct shaping, the main body is manufactured by adopting an independently designed single-sided or double-sided casting process which is simple to manufacture and low in cost, and the process is mature and has high manufacturing quality. Including integrated into one piece's back beam, left longeron, right longeron and front beam, the one end of left side longeron and right longeron is fixed to be set up on the back beam, the both ends of front beam are fixed respectively and are provided with a connecting piece and left longeron, right longeron fixed connection, set up a cavity that communicates to the back beam outside in the back beam, the fixed a plurality of connecting plates that are provided with in the cavity, the both ends of connecting plate respectively with the lateral wall fixed connection of back beam, enclose synthetic triangular shape's appearance chamber between two adjacent connecting plates and the back beam, the fixed plate that is provided with a plurality of cross forms and sets up in the cavity, the both ends of fixed plate are fixed to be set.
Description
Technical Field
The invention belongs to the technical field of automobile parts, and particularly relates to a front auxiliary frame of a hollow casting and section welding combined structure.
Background
The vehicle subframe is a carrier for vehicle body parts such as an engine and a suspension in most of the vehicle types using a non-self-supporting vehicle body structure. One such improvement in the prior art would be to integrate the previous components, improve the versatility of the suspension, and reduce the development costs of the vehicle enterprises. However, the deterioration caused by the technology is the reduction of the bearing capacity and the low stress differentiation capacity, and at present, manufacturers further adopt an aluminum alloy auxiliary frame with a hollow inner part to the technology, namely, an inner framework with a hollow cavity and a lap joint edge is prepared from a tube blank through an inner high-pressure forming process to form the auxiliary frame with the structure.
Disclosure of Invention
The invention provides the front auxiliary frame which has higher integral strength and utilizes a hollow casting and section welding combined structure, firstly, the front auxiliary frame is directly shaped by adopting an aluminum material, the aluminum-compared metal steel is fully adopted, the front auxiliary frame has the advantage of emphatic lightweight, the main body is manufactured by adopting an independently designed single-face or double-face casting process which is simple to manufacture and low in cost, the process is mature, and the manufacturing quality is high.
The invention is realized by the following method: the utility model provides an utilize preceding sub vehicle frame of hollow casting and section bar welding integrated into one piece's rear frame member, left longeron, right longeron and front beam, the one end of left side longeron and right longeron is fixed to be set up on the rear frame member, the both ends of front frame member are fixed respectively and are provided with a connecting piece and left longeron, right longeron fixed connection, wherein: the rear cross beam is internally provided with a cavity communicated to the outer side of the rear cross beam, a plurality of connecting plates are fixedly arranged in the cavity, two ends of each connecting plate are fixedly connected with the side wall of the rear cross beam respectively, a triangular accommodating cavity is enclosed between each two adjacent connecting plates and the rear cross beam, a plurality of fixing plates in a cross shape are fixedly arranged in the cavity, and two ends of each fixing plate are fixedly arranged on the side wall of the rear cross beam.
Preferably, the triangular cavity enclosed between the connecting plate and the rear cross beam and the fixing plate are respectively positioned on two sides in the cavity.
Preferably, the number of the fixing plates is at least four, the fixing plates comprise two first reinforcing plates arranged in a crossed mode and two second reinforcing plates arranged in a crossed mode, and the length of the first reinforcing plates is larger than that of the second reinforcing plates.
Preferably, the rear cross beam is provided with a plurality of openings communicated to the cavity, and the openings are communicated to the connecting plate, the side wall of the rear cross beam, and a gap between the first reinforcing plate and the second reinforcing plate.
Preferably, the connecting piece comprises a left front casting and a right front casting, the left front casting and the right front casting are respectively and symmetrically arranged at two ends of the front cross beam, and a plurality of reinforcing ribs are fixedly arranged on the left front casting and the right front casting.
Preferably, one end of the left front casting and one end of the right front casting, which face the rear cross beam, are respectively provided with a first mounting groove for mounting the left longitudinal beam and the right longitudinal beam, the end face of the rear cross beam, which face the left front casting and the right front casting, are provided with a second mounting groove for mounting the left longitudinal beam and the right longitudinal beam, and the first mounting grooves correspond to the second mounting grooves one to one.
Preferably, a left front support is fixedly arranged on the end face, far away from the right longitudinal beam, of the left longitudinal beam, and a right front support is fixedly arranged on the end face, far away from the left longitudinal beam, of the right longitudinal beam.
Preferably, one end of the left front casting, which is far away from the front cross beam, is provided with a first front vehicle body mounting point for mounting a vehicle body, and one end of the right front casting, which is far away from the front cross beam, is provided with a second front vehicle body mounting point for mounting the vehicle body.
Preferably, two ends of the rear cross beam are respectively provided with a first vehicle body rear mounting point for mounting a vehicle body.
Preferably, the first vehicle body front mounting point, the second vehicle body front mounting point and the first vehicle body rear mounting point are located on the same plane, and the plane is located above a plane where the left longitudinal beam, the right longitudinal beam, the front cross beam and the rear cross beam are located.
The invention has the advantages that: 1. firstly, the integrally formed rear cross beam, left longitudinal beam, right longitudinal beam and front cross beam are used for being mature in process and high in mastering capacity, a left front casting and a right front casting which are cast on a single surface can be rapidly manufactured and then assembled with the cast rear cross beam, the traditional 3-4 assemblies are divided into 8 assemblies which can be spliced for multiple times, the assembly specifications can be combined and spliced at will, therefore, the applicability is wide, the manufacturing requirements of different manufacturers can be met after various types of matching, the design or manufacturing replacement of an independent module is carried out instead of integration, the assembling method is simple and rapid, the mutual connecting structural strength of the connecting assembly needing to be connected is correspondingly improved by adding the design of the structure with the connecting plate and the fixing plate which are arranged in the cavity, and the general matching mode can reduce the complexity of the process and the improvement of the cost in assembling and manufacturing brought by the traditional process;
2. The combined components are made of low-cost aluminum materials directly and are molded, aluminum-steel-compared-to-metal-steel is fully adopted, the advantage of important light weight is achieved, the main body components are independently designed to be manufactured, and the combined components are further manufactured through a single-sided or double-sided casting process, the process is mature, so that the process control degree is high during manufacturing, the manufactured product quality is high, the reduction of automobile energy consumption is achieved instead of pursuing a light-weight process with high hollow cost in the prior art, and another path is selected to achieve the capacity of reducing the automobile energy consumption.
3. For example, a cavity communicated to the outer side of the rear cross beam is directly formed in the rear cross beam, the cavity structures and the splicing longitudinal beams are directly spliced and inserted and then welded, compared with the traditional steel hollow auxiliary frame, the invention achieves higher-level requirements through rapid manufacturing, modularly reduces welding parts, replaces high-quality process requirements of a splicing welding process by using a section welding mode, has a compact and firm structure of the lap joint relation among all sheet metal parts, does not have the traditional splicing welding step, reduces the use weight of the all-aluminum casting by 5-15% compared with the prior art due to the reduction of the parts, not only reduces the use energy consumption of the used automobile by the same ratio, but also enables the structure of the product to enable the automobile body strength to meet the standard and the safety to reach the standard.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a rear view of the rear cross member;
FIG. 3 is a rear view of the left and right front castings.
In the figure: 1. a rear cross member; 2. a left stringer; 3. a right stringer; 4. a front cross member; 5. a cavity; 6. a connecting plate; 7. a fixing plate; 8. a first reinforcing plate; 9. a second reinforcing plate; 10. an opening; 11. a left front casting; 12. a right front casting; 13. reinforcing ribs; 14. a first mounting groove; 15. a second mounting groove; 16. a left front bracket; 17. a right front bracket; 18. a first front vehicle body mounting point; 19. a second front vehicle body mounting point; 20 first body rear mounting point.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in figures 1 and 2, the front auxiliary frame with a hollow casting and section welding combined structure comprises a rear cross beam 1, a left longitudinal beam 2, a right longitudinal beam 3 and a front cross beam 4 which are integrally formed, one end of the left longitudinal beam 2 and one end of the right longitudinal beam 3 are fixedly arranged on the rear cross beam 1, two ends of the front cross beam 4 are respectively and fixedly provided with a connecting piece which is fixedly connected with the left longitudinal beam 2 and the right longitudinal beam 3, a cavity 5 communicated to the outer side of the rear cross beam 1 is arranged in the rear cross beam 1, a plurality of connecting plates 6 are fixedly arranged in the cavity 5, two ends of the connecting plates 6 are respectively and fixedly connected with the side wall of the rear cross beam 1, a triangular cavity is enclosed between two adjacent connecting plates 6 and the rear cross beam 1, a plurality of fixing plates 7 which are arranged in a cross mode are fixedly arranged in the cavity 5, and two ends of each fixing plate 7 are fixedly arranged on the side wall of the rear cross beam 1.
and a triangular cavity enclosed between the connecting plate 6 and the side wall of the rear cross beam 1 and a fixing plate 7 are respectively positioned at two sides in the cavity 5. The fixed plates 7 are four and comprise two first reinforcing plates 8 arranged in a crossed mode and two second reinforcing plates 9 arranged in a crossed mode, and the length of the first reinforcing plates 8 is larger than that of the second reinforcing plates 9. The rear cross beam 1 is provided with a plurality of openings 10 communicated to the cavity 5, and the openings 10 are communicated to gaps among the connecting plate 6, the side wall of the rear cross beam 1, the first reinforcing plate 8 and the second reinforcing plate 9.
Splice the installation after accomplishing through a plurality of parts of sub vehicle frame split with integrated into one piece, its each part is made through the cast mode of single face, reduces the weight of part by a wide margin, promotes the wholeness ability of sub vehicle frame to connecting plate 6 through setting up in 1 cavity 5 of rear frame and fixed plate 7 improve the structural strength of rear frame 1 by a wide margin, and a plurality of openings 10 that set up on rear frame 1 communicate to in the cavity 5 reduce the weight of rear frame 1.
A left front support 16 is fixedly arranged on the end face, far away from the right longitudinal beam 3, of the left longitudinal beam 2, and a right front support 17 is fixedly arranged on the end face, far away from the left longitudinal beam 2, of the right longitudinal beam 3. The sub-frame is fixed to the vehicle frame by a left front bracket 16 and a right front bracket 17.
Connecting plate 6 and fixed plate 7 in the cavity 5 set up the both sides in cavity 5 respectively, enclose through 1 lateral wall of back crossbeam and 5 lateral walls of cavity and close to form triangle-shaped appearance chamber and cross arrangement's reinforcing plate 8 and reinforcing plate two 9 and disperse the pressure that the sub vehicle frame bore respectively to on connecting plate 6 and fixed plate 7 are dispersed to the inhomogeneous pressure that the sub vehicle frame bore, the diffusion of pressure is comparatively reasonable.
The connecting piece comprises a left front casting 11 and a right front casting 12, the left front casting 11 and the right front casting 12 are respectively and symmetrically arranged at two ends of the front cross beam 4, and a plurality of reinforcing ribs 13 are fixedly arranged on the left front casting 11 and the right front casting 12.
The left front casting 11 and the right front casting 12 are respectively provided with a first mounting groove 14 for mounting the left longitudinal beam 2 and the right longitudinal beam 3 towards one end of the rear cross beam 1, the rear cross beam 1 is provided with two second mounting grooves 15 for mounting the left longitudinal beam 2 and the right longitudinal beam 3 towards the end surfaces of the left front casting 11 and the right front casting 12, and the first mounting grooves 14 are in one-to-one correspondence with the second mounting grooves 15. Carry out fixed mounting to left longeron 2 and right longeron 3 through mounting groove one 14 and the second 15 of mounting groove of seting up, the both ends of left longeron 2 and right longeron 3 are passed through welded fastening and are set up in mounting groove one 14 and mounting groove two 15.
The end of the left front casting 11 far away from the front cross beam 4 is provided with a first body front mounting point 18 for mounting a body, and the end of the right front casting 12 far away from the front cross beam 4 is provided with a second body front mounting point 19 for mounting the body. Two ends of the rear cross beam 1 are respectively provided with a first vehicle body rear mounting point 20 for mounting a vehicle body. The first vehicle body front mounting point 18, the second vehicle body front mounting point 19 and the first vehicle body rear mounting point 20 are located on the same plane, and the plane is located above a plane where the left longitudinal beam 2, the right longitudinal beam 3, the front cross beam 4 and the rear cross beam 1 are located. The vehicle body is arranged on the auxiliary frame through the first vehicle body front mounting point 18, the second vehicle body front mounting point 19 and the first vehicle body rear mounting point 20, and the installation is safe and reliable.
It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended sense, i.e., in a sense equivalent to "including at least … …", and not in a closed sense, i.e., in a sense not to be interpreted as "including only … …".
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A front auxiliary frame of a hollow casting and profile welding combined structure comprises a rear cross beam (1), a left longitudinal beam (2), a right longitudinal beam (3) and a front cross beam (4) which are integrally formed, wherein one end of each of the left longitudinal beam (2) and the right longitudinal beam (3) is fixedly arranged on the rear cross beam (1), two ends of the front cross beam (4) are respectively and fixedly provided with a connecting piece to be fixedly connected with the left longitudinal beam (2) and the right longitudinal beam (3), the front auxiliary frame is characterized in that a cavity (5) communicated to the outer side of the rear cross beam (1) is formed in the rear cross beam (1), a plurality of connecting plates (6) are fixedly arranged in the cavity (5), two ends of each connecting plate (6) are respectively and fixedly connected with the side wall of the rear cross beam (1), a triangular accommodating cavity is defined between two adjacent connecting plates (6) and the rear cross beam (1), and a plurality of fixing plates (7) which are arranged in a crossed manner are, and two ends of the fixing plate (7) are fixedly arranged on the side wall of the rear cross beam (1).
2. The front subframe utilizing a hollow casting and profile welding combined structure as claimed in claim 1, wherein a triangular cavity enclosed between the connecting plate (6) and the rear cross member (1) and the fixing plate (7) are respectively located at two sides in the cavity (5).
3. the front subframe utilizing a hollow casting and profile welding combined structure as claimed in claim 1, wherein said fixing plate (7) is provided with at least four, including two first cross reinforcing plates (8) and two second cross reinforcing plates (9), and the length of said first reinforcing plates (8) is greater than that of said second reinforcing plates (9).
4. The front subframe utilizing a hollow casting and profile welding combined structure as claimed in claim 3, wherein a plurality of openings (10) communicated to the cavity (5) are formed on the rear cross beam (1), and the openings (10) are communicated to gaps among the connecting plate (6) plate, the side wall of the rear cross beam (1), the first reinforcing plate (8) and the second reinforcing plate (9).
5. The front subframe using a hollow casting and profile welding combined structure as claimed in claim 1, wherein the connecting member comprises a left front casting (11) and a right front casting (12), the left front casting (11) and the right front casting (12) are respectively symmetrically arranged at two ends of the front cross member (4), and a plurality of reinforcing ribs (13) are fixedly arranged on the left front casting (11) and the right front casting (12).
6. The front subframe utilizing the hollow casting and profile welding combined structure as claimed in claim 5, wherein one end of the left front casting (11) and one end of the right front casting (12) facing the rear cross beam (1) are respectively provided with a first mounting groove (14) for mounting the left longitudinal beam (2) and the right longitudinal beam (3), the end surface of the rear cross beam (1) facing the left front casting (11) and the right front casting (12) are provided with a second mounting groove (15) for mounting the left longitudinal beam (2) and the right longitudinal beam (3), and the first mounting grooves (14) and the second mounting grooves (15) are in one-to-one correspondence.
7. The front subframe utilizing a hollow casting and profile welding combined structure as claimed in claim 6, wherein a left front bracket (16) 16 is fixedly arranged on the end surface of the left longitudinal beam (2) far away from the right longitudinal beam (3), and a right front bracket (17) 17 is fixedly arranged on the end surface of the right longitudinal beam (3) far away from the left longitudinal beam (2).
8. The front subframe utilizing a hollow casting and profile welding combined structure as claimed in claim 1, wherein an end of said left front casting (11) away from said front cross member (4) is provided with a first front body mounting point (18) for mounting a vehicle body, and an end of said right front casting (12) away from said front cross member (4) is provided with a second front body mounting point (19) for mounting a vehicle body.
9. The front subframe utilizing a hollow casting and profile welding combined structure as claimed in claim 8, wherein both ends of said rear cross member (1) are respectively provided with a first rear body mounting point (20) for mounting a body.
10. The front subframe utilizing hollow casting and profile welding combination structure as claimed in claim 9, wherein the first front body mounting point (18), the second front body mounting point (19) and the first rear body mounting point (20) are located on the same plane, and the plane is located above the plane where the left side member (2), the right side member (3), the front cross member (4) and the rear cross member (1) are located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801454.1A CN110539800A (en) | 2019-08-28 | 2019-08-28 | Front auxiliary frame with hollow casting and section welding combined structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910801454.1A CN110539800A (en) | 2019-08-28 | 2019-08-28 | Front auxiliary frame with hollow casting and section welding combined structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110539800A true CN110539800A (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910801454.1A Pending CN110539800A (en) | 2019-08-28 | 2019-08-28 | Front auxiliary frame with hollow casting and section welding combined structure |
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| CN (1) | CN110539800A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776888A (en) * | 2021-03-03 | 2021-05-11 | 四川建安工业有限责任公司 | Multi-connecting-rod lightweight rear auxiliary frame structure of automobile |
| CN114313022A (en) * | 2021-10-09 | 2022-04-12 | 浙江零跑科技股份有限公司 | Aluminum extruded section vehicle body structure for new energy automobile |
-
2019
- 2019-08-28 CN CN201910801454.1A patent/CN110539800A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112776888A (en) * | 2021-03-03 | 2021-05-11 | 四川建安工业有限责任公司 | Multi-connecting-rod lightweight rear auxiliary frame structure of automobile |
| CN114313022A (en) * | 2021-10-09 | 2022-04-12 | 浙江零跑科技股份有限公司 | Aluminum extruded section vehicle body structure for new energy automobile |
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